| small farm(environment, agriculture, farming) |
| agricultural soil science(noun, expression, entity, study, science) |
| head back(agriculture, farming, gardening, horticulture) |
| plant breeding(noun, expression, entity, study, science) |
| subsistence agriculture(noun, expression, culture, agriculture, farming) |
| agriculture(noun, entity, study, science, field) |
| agroecology(noun, entity, study, science, field) |
| irrigation(noun, entity, study, science, field) |
| agrophysics(noun, entity, study, science, field) |
| Liebig's law of the minimum(noun, expression, entity, study, science) |
| Penman-Monteith equation(noun, expression, entity, study, science) |
| Penman equation(noun, expression, entity, study, science) |
| agricultural engineering(noun, expression, entity, study, science) |
| agricultural experiment station(noun, expression, entity, study, science) |
| agricultural geography(noun, expression, entity, study, science) |
| agricultural science(noun, expression, entity, study, science) |
| agrobiology(noun, entity, study, science, field) |
| agroecosystem analysis(noun, expression, entity, study, science) |
| agroforestry(noun, entity, study, science, field) |
| agrology(noun, entity, study, science, field) |